If a glass rod is rubbed with a dry cloth, what kind of charge would it be:

A) positive, due to extra protons

B) negative, due to protons lost

C) positive due to electrons lost

D) negative, due to extra electrons

A silver bar has a mass of 260.0 g and is heated from 22.0 °C to 70.0 °C. How much heat does the silver bar absorb? Silver has a specific heat of 0.235 J / (g °C).

Which type of rock is created when lava cools and hardens?

Two blocks are in contact on a frictionless, horizontal tabletop. An external force, F, is applied to block 1, and the two blocks are moving with a constant acceleration of 2.70 m/s2. Use M1 = 3.03 kg and M2 = 6.40 kg.

What types of surfaces would result in less friction? What type of surfaces would result in greater friction?

Consider three axes of rotation for a pencil: along the lead, at right angles to the lead at the middle, and at right angles to the lead at one end. Rate the rotational inertias about each axis from smallest to largest.

How far into editing our human genes?

Which electromagnetic wave has the shortest wavelength? (A. Radio waves b. X-rays c. infrared rays or d. Visible light)

Which mixture can be separated based on differences in particle size of the components

What happens in an open circuit

When analyzing forces, it is allowable to break the motion and forces into horizontal and vertical components.